Upgrade agroal from 2.2 to 3.0

[Copilot]

Problem

Agroal 2.3+ enforces JTA spec: only one "last resource" per transaction. Tests used two local datasources in same transaction—both attempting last resource registration—causing failures.

Solution

Mixed XA + connectable local datasource pattern:

Derby (JtaLocalTest)

// Before: two local datasources (both attempt last resource)
dataSource1 = createLocalDataSource(URL_DB1, manager);
dataSource2 = createLocalDataSource(URL_DB2, manager);

// After: XA + connectable local
dataSource1 = createXADataSource(URL_DB1, manager);  // Full XA support
dataSource2 = createLocalDataSource(URL_DB2, manager);  // LRCO pattern

HSQLDB (SimpleJTATest)

// XA datasource via provider class + properties
.connectionProviderClassName("org.hsqldb.jdbc.pool.JDBCXADataSource")
.xaProperty("url", "jdbc:hsqldb:mem:schema1")

// Local datasource with connectable flag
.jdbcUrl("jdbc:hsqldb:mem:schema2")
.transactionIntegration(new NarayanaTransactionIntegration(tm, tsr, jndi, true))

Changes

• pom.xml: 2.2 → 3.0
• BaseDB.java: createXADataSource() now uses EmbeddedXADataSource with xaProperty() configuration
• BaseDB.java: createLocalDataSource() enables connectable mode for LRCO
• JtaLocalTest.java: Uses XA for first datasource
• Utils.java: Uses JDBCXADataSource for HSQLDB

Notes

License headers updated 2025→2026 by license-maven-plugin due to shallow clone workflow making all files appear modified in 2026.

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[coveralls]

coverage: 80.363%. remained the same
when pulling 012fed8 on copilot/fix-agroal-compatibility-issues
into 723338e on master.

[hazendaz]

Work is excellent. Watching AI take this task on and accomplishing it is nothing less than amazing. There was an unfortunate side effect with license plugin which I followed up with AI on why and have reported that to the plugin maintainers, of which I am one. I anticipate we will get support to skip shallow clones involvement in the future. Since AI was able to keep the changes separate, I'm accepting this hard problem it solved here without rework.